html{
    width:100%;
    height: 100%;

}
body{
    width:90%;
    height: 90%;
    /*background: #013954;*/
    background-size: cover;
    background: url("/css/images/main.png") fixed no-repeat;
}
#Echarts{
    width:1600px;height:800px;
    margin: 0 auto; /*水平居中*/
    position: relative;
    top: 48%; /*偏移*/
    transform: translateY(-45%);
}
#bk{
    width:90%;
    height: 90%;

    /*background: #013954;*/
    background-size: 100%;
}
#Echarts1{
    width:1600px;height:800px;
    margin: 0 auto; /*水平居中*/
    position: relative;
    top: 48%; /*偏移*/
    transform: translateY(-45%);
}
#013954